You have to vote for the secrets
Well, a release date in 2013 for PAL territories isn't certain. They could very well delay PS4's launch there like they've done often before.
I think Sony not releasing ps4 in all regions by the end of the year will be bad. Unless MS is really having problems with their hardware heating and not focusing on preformance as their #1 priority, then they could delay it into 2014 and Sony would be fine probably.